The city emblem was adopted on Dec 28th 1962 by Notice No 73
but there is no flag law.
The white flag has a red city emblem in the center.
The city emblem is a stylized hiragana そ So of Soma.
The fan shape symbolizes the future of the city, the upper
part wings do a saltation, the center ship does a development
of Port Soma, the lower part outer circle does a public welfare and a solidarity
of the citizen and the inner circle does a consciousness of the responsibility
for an urban development with a collaboration.
it represents a wish for a promotion and a development of Port Soma and the
neighboring coastal industry and an ambition to become a modern industrial city.Nozomi Kariyasu, 08 September 2014